RSS feeds per user in Wordpress

Googled for a while expecting to find some plugin to do this, but no luck. So here’s a quick hack;

Open up /wp-includes/feed-rss2.php and at about line 35, after where it starts the while() loop, add;

<?php if ( isset( $_GET['author'] ) ) : if ( get_the_author_ID() != $_GET['author'] ) continue; endif; ?>

You will now be able to create feeds on a per user basis via, the URL

www.mysite.com/?feed=rss2&author=[author_id]

The surest way to get a user/author’s ID is in the admin backend under “Users”, if you hover over a username the ID will be in the URL.